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(No Model.) 2' Sheets-Sheet 1.

W. SCOTT.

SHEET DELIVERY APPARATUS FOR PRINTING MACHINES. No. 351,471. PatentedOct. 26, 1886.

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(No Model.) 2 Sheets-Sheet 2 w; SCOTT. v SHEET DELIVERY APPARATUS FORPRINTING MACHINES.

No. 351,471. Patented Oct. 26, 1886.

UNITED STATES PATENT Ormcml WALTER SCOTT, OF PLAINFIELD, NEW JERSEY.

SHEET-DELIVERY APPARATUS FOR PRINTING-MACHINES.

SPECIFICATION forming part oi Letters Patent No.351,471, dated October26, 1886.

Application filed October 28, 1885. Serial No. 181,147. (No model) 1'0all whom it may concern;-

Be it known that I, WALTER Scorr, of Plainfield, in the county of Unionand State of New Jersey, have invented an Improvement in Sheet DeliveryApparatus 'for Printing-Machines, of which the following is aspecification.

This improvement is especially available with stop-cylinder presses inwhich the impression-cylinder remains stationary during the returnmovement of the bed, and this press may be used for lithographicprinting, but it is not limited in this particular. In my improvementthe sheet is fed down against gagefingers, the grippers close upon thesheet as the cylinder commences to revolve, the gagefingers are swungaway, the sheet iscarried around and printed and the cylinder againstops, with the fingers open, the sheet having been taken by a range oftraveling grippers, and it is drawn off horizontally. At this time thegage-fingers are raised, but they are swung down in position for thenext sheet after the printed one has been drawn away. If, now,the'stop'motion that prevents the impressioncylinder revolving isbrought into action by the attendant, the parts are so looked that thegage-fingers will not be swung up, and the grippers for conveying away aprinted sheet will remain open as theytravel back and forth, and thesheet will not be grasped by them until the proper time after beingprinted.

In the drawings, Figure l is a diagramatic view showing portions of theprinting-press in elevation, and my improved parts applied to the same.Fig. 2 is, a partial cross-section at the line as x, showingv the bed,the sheet-delivery grippers, and the connecting-gearing. Fig. 3 is asection representing the latch delivery-grippers and bar to which theyare at tached. Fig. 4 shows the delivery-grippers as closed to grasp theadvancing end of the sheet; and Fig. 5 is an elevation, partly insection, of the devices for actuating the gagefingers and the stop ofthe sheet-delivery grippers.-

The frame A, impression-cylinder B, and bed 0 are of any desired orknown form, and adapted to work in the ordinary manner. The devices forgiving motion to the bed and for moving the impressioncylinder B, andfor starting and stopping the same, do not form any especial feature ofthe present invention. As these parts are well known, they may be of anydesired character, it being understood that the press is constructed soas to form what is known as a stop-cylinder press, in which the bed maybe reoiprocated to any desired extent, and in which theimpression-cylinder may be stopped for a longer or shorter period whilethe bed is being reciprocated for inking up the form or lithographicstone or other surface employed in printing. My improvements, however,are available with presses in which the impression cylinder turns firstone way and then the other as thebed reciprocates, and in which theimpression is thrown off by raising the cylinder or lowering the bed.

The sheet-delivery grippers 6 and 7 are upon a crossbar, N, between tworacks, r, supported,

in the auxiliary frames A, similar to those shown in my application No.178,991, filed October 5, 1885, to which a reference is made for a morefull description of the construction of the crossbar N and partsconnected therewith. I however remark that the racks 0, that support theend of the cross-bar N, are in ways upon the auxiliary frame A, andreceive motion back and forth by the shaft r and wheels U as shown insaid application, and the pin 8, over which the camlever 0 slides,serves to swing the fingers 7, opening the grippers and delivering thesheet upon the table M, and the latch 12 holds the heel or arm 11, thatprojects from the shaft h, so that the latter cannot rotate and allowthe fingers to close and grasp the sheet until the latch 11 is withdrawnfrom the heel 19. These parts operate the same as in the aforesaidapplication; but I arrange the parts in such a manner that thedeliverygrippers 6 and 7 are moved entirely up to theimpression-cylinder B and take the sheet off directly from the same, inthe manner herein- The devices which are made use of for throwing offthe impression and stopping the revolution of the impression-cylinder B,but allowing the bed 0 to reciprocate, are of any desired character, andas they do not form any part of this invention are not shown herein,except that the foot-piece F, which is usually employed in presses ofthis character to move the shaft F, and the devices therewith connectedthat throw off the impression, are also used in connection with thepresent improvements to act upon the sheet-gage, the grippercam, and thestop for the sheet'delivery fingers, as hereinafter described. Thefoot-piece F is raised and returned to a normal position by a spring inany well-known manner.

The shaft H is to be connected with the other parts of the press, sothat it revolves once to each complete reciprocation of the bed 0. Thisshaft is usually found in presses of this character. Upon the said shaftH, I place a cam, 71 that acts upon a roller, 12, upon a vertical rod,71 and this red h is pivoted at its upper end to the gripper-cam t,which cam is con nected to the frame of the machine bya pivotbolt,

I; are the grippers and gripper-shaft upon the impression-cylinder B,and k is an arm at the end of the gripper-shaft against which the cam iacts to open the grippers as the impression-cylinder revolves. Thesegrippers are Closed bya spring, as usual, and I remark that in pressesof this character the grippers 7c are opened by the cam i and closed bythe action of the spring to grasp the sheet as the arm k passes off thecam i, and the parts are timed so that this operation takes place whenthe sheet is to be grasped and carried around with and by theimpression-cylinder B for receiving the impression from thelithograph-stone or other surface, but when the sheet is to be deliveredthe grippers are opened to liberate the sheet, and the sheet-deliveryfingers grasp and carry away the sheet before the grippers ll close bythe movement of the impression-cylinder.

At the lower end of the rod h is a roller or pin, 13, and there is alockingsector, L, upon a shaft, 1, that receives motion from the crossshaft F, arm m, link a, to the crank n upon the shaft Z; hence, when thefoot-piece F is depressed to bring into action the devices that stop theimpressioncylinder B, as usual, the arm m, link 12-, and crank a" turnthe shaftl and lockingsector L, so that the locking-sector passesbeneath the pin or roller 13 and causes the said lockingsector to holdup the rod h, gripper-cam z, and the gripper-arm It, so that the gripperIt remains open, and this position continues as long as the foot-piece Fis depressed.

I make use of gagefingers 8 upon a shaft, 8, the bearings for which areat the ends of the auxiliary frame A, and upon the shaft 5 is an arm, 8to which the vertical rod 6 is hinged, and upon the aforesaid shaft H isa second cam, t, acting against the roller 25 upon the vertical rod t.The shape and position of the cam t are such that the gage-fingers s areallowed to remain in their normal position for the lower edge of thesheet to stop against as it is fed to the press; but just before thecylder B commences to move, the can] t" raises the gage-fingers 8 out ofthe way of the advancing end of the sheet of paper. At the same momentthe gripper-fingers 7; hold the sheet to the impression-cylinder whilethe same is conveyed away and printed. If the impression-cylinder B isstopped, the gage-fingers 3 remain in position, because thelocking-sector L, as it is swung in the manner before described, passesover a pin, 16, on the vertical rod t, holding said rod t down, andpreventing it being raised by the spring t, that lifts the same andswings the gage-fingers. This spring may be applied in any desiredmanner. Usually it will be helical and surround the rod 1, so as to actupon the said rod and the parts connected therewith.

I provide a pin, 9, the object of which is to swing the latch p anddisconnect it from the arm 1) of the shaft h and allow thedeliverygripper 7 to close and grasp the sheet, as in the aforesaidapplication; but if this pin or stop 9 were stationary, thedelivery-grippers would be closed each time such grippers were broughtup to the impression-eylindcr B, and the sheet would be grasped and tornif this occu red while the impression-cylinder B, grippers 7c, andgage-fingers s remained stationary, or an unprinted sheet might be takenaway by the deliveryfingers. I therefore place the stop-finger 9 upon anarm, 6, pivoted at e upon the frame of the machine, and there is a link,6 to an arm, 0 at the end of the shaft 8, so that when the gage-fingerss and shaft 8 oceupy a normal position, the stop-pin 9 and arm 6 areswung down out of the way of the lever 12, and the delivery-grippers 6and 7 and the parts carrying the same are free to be reciprocatedwithout the delivery-grippers closing; but so soon as theimpression-cylinder B is released and free to rotate, the locking-sectorLis simultaneously swung back as the footpiece F is raised, and therollers or pins 13 and 16 are liberated from such locking-sector, andthe cams h and t, acting in connection with the rods t and h, swing thegage-fingers 8 up out of the way, and in so doing move the arm e andstop 9, so that the latter uulatches the latch 19 and allows the gripper7 to close and grasp the sheet, and these fingers 7 having run inbeneath the lower edge of thesheet lift such sheet in the act of closingand raise the same above the grippers 7c, and the movement of the racksr, cross-bar N, and deliverygrippers now take place and the sheet isdrawn off the impression cylinder B and carried along horizontally overthe table M, and the sheet is dropped upon the same by the camlever 0,running over the pin 8 and opening the delivery-grippers. The parts aretimed so that this motion takes place during the time that the bed 0moves back beneath the IIO as the grippers close.

impression-cylinder B and receives the ink upon the printing-surface,and immediately after the printed sheet has been drawn off the cam tswings-the gage-fingers 8 down into place, and the next sheet is moveddown the feeding-table until its lower edge rests against suchgage-fingers s, and upon the return movement of the bed 0 theimpression-cylinder B commences its rotation, the grippers is close andgrasp the sheet, and the printing operation is performed as usual, theedge of the printed sheet being brought around to the same place whereit was taken by the grippers, the mechanism arrests the movement of thestop impressioncylinder, and the "grippers being opened by the cam z thesheet is liberated and the end thereof is taken by thedelivery-grippers6 and 7 and drawn off, as beforedescribed.

I do not limit myself to the latch for holding open thedelivery-grippers, or the arm and cam for opening the same, asdeliverygrippers with other opening and closing devices are known andare available with'the movable stop 9.

It will be borne in mind that in stop-cylinder presses and in presses inwhich the impression-cylinder turns first one way and then the other thestopping of the impression-cylinder and of the type-bed aresimultaneous,and in my present improvement I have shown the gearing thatconnects the type-bed to the slides carrying the grippers, and hence thedeliverygrippers stop and start with the typebed, and they also move inthe same direction. In all instances the advancing end of the printedsheet comes up over the impression-cylinder as the delivery-gripperscome up in the other direction, and all these parts momentarily stop Ido not, therefore, limit myself to the particular gearing shown forconnecting the grippers with the type-bed,

so that the movements correspond, as any suitable connection may beemployed between the type-bed and grippers, and this improvement isequally available in presses where the impression-cylinder oscillatesand turns first one way and then the other.

I claim as my invention 1. The combination, with the impressioncylinderand its grippers, of delivery-grippers, shaft for the same, a cross-barand a rack for communicating motion to the delivery-grip' perslongitudinally of the press, a stop for opening the grippers, and a stopto cause the grippers to close, substantially as set forth.

2. In a cylinder printing'press, the combination, with theimpression-cylinder and its grippers, of a swinging gripper-cam, a rodand cam for moving the same, a shaft and gage-fingers, a rod and cam formoving the same, a locking-sector for holding the respective rods, thefoot-piece F, and the connections for moving the locking-sector,substantially as specified.

3. The combination, with the gage-fingers s and their shaft 8', of theimpression-cylinder B and grippers, the delivery-grippers 6 and 7,

and means for moving the same, and a latch for holding the grippersopen, a movable stop, 9, and a connection from the said stop to theshaft of the gage-fingers, whereby the delivery-grippers are caused toremain open while the gage-fingers are in their normal position,substantially as set forth.

4. The combination, with the type-bed and stop-motionimpression-cylinder, of deliverygrippers, a crossbar and slides for thesame, connecting-gearing from the type-bed to the slides, and mechanism,substantially as specified, for causing the delivery-grippers to closeand draw the sheet over the impression-cylinder with the printed sideupmost, and asheetdeliverytable over the type-bed,and means for openingthe delivery-grippers, substantially as specified.

r 5. The combination, with the impressioncylinder and its grippers, ofdelivery-grippers and mechanism for moving the delivery-grippershorizontally, a pin, 9, and arms 6 ee, link 6 shaft 6, and mechanism,substantially as specified, for connecting the arm a with thefoot-treadle F, so that the delivery-grippers are caused to remain openand inoperative until theimpression-cylinder is brought intoaction,substantially as set forth.

6. The combination, with the impressioncylinder and a reciprocatingtype-bed, of delivery grippers, the cross bar, shaft, and toothed slidesfor supporting the same, and gearing, substantially as specified, andthe toothedwheel E for connecting the slides to the reciprocating bed,so that the deliverygrippers receive a positive motion from thereciprocating bed, substantially as set forth.

Signed by me this 22d day of October, 1885.

WALTER SCOTT.

f Witnesses:

GEO. T. PINOKNEY, WALLACE L. SERRELL.

